According to Proffit's Equilibrium Theory, what is more important than the amount of force exerted on the teeth?

In Proffit's Equilibrium Theory, the emphasis is placed on how the balance of forces influences tooth movement and dental arch morphology. Among the factors that contribute to this balance, the resting posture is crucial because it encompasses the natural position of the teeth and surrounding tissues when the muscles are relaxed. This posture affects how forces from the muscles of mastication interact with the teeth and the surrounding periodontal tissues.

Resting posture plays a vital role in how teeth respond to orthodontic treatment. A stable resting posture can facilitate more effective tooth movement and overall treatment outcomes. This principle underscores the importance of maintaining a favorable resting posture during orthodontic treatment, as it can influence the efficacy of the forces applied and the ultimate positioning of the teeth.

While other factors like the duration, direction, and timing of forces are indeed important in orthodontic mechanics, Proffit's theory places a greater emphasis on the resting posture because it affects the foundational balance of forces acting within the oral environment. This understanding is essential for orthodontic practitioners when designing treatment plans that align with the body's natural tendencies.